19f68d364f756e886e8cd88082049c0a51054820
[ldk-java] / src / main / java / org / ldk / structs / EventHandler.java
1 package org.ldk.structs;
2
3 import org.ldk.impl.bindings;
4 import org.ldk.enums.*;
5 import org.ldk.util.*;
6 import java.util.Arrays;
7 import javax.annotation.Nullable;
8
9 /**
10  * A trait implemented for objects handling events from [`EventsProvider`].
11  */
12 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
13 public class EventHandler extends CommonBase {
14         final bindings.LDKEventHandler bindings_instance;
15         EventHandler(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
16         private EventHandler(bindings.LDKEventHandler arg) {
17                 super(bindings.LDKEventHandler_new(arg));
18                 this.ptrs_to.add(arg);
19                 this.bindings_instance = arg;
20         }
21         @Override @SuppressWarnings("deprecation")
22         protected void finalize() throws Throwable {
23                 if (ptr != 0) { bindings.EventHandler_free(ptr); } super.finalize();
24         }
25
26         public static interface EventHandlerInterface {
27                 /**
28                  * Handles the given [`Event`].
29                  * 
30                  * See [`EventsProvider`] for details that must be considered when implementing this method.
31                  */
32                 void handle_event(Event event);
33         }
34         private static class LDKEventHandlerHolder { EventHandler held; }
35         public static EventHandler new_impl(EventHandlerInterface arg) {
36                 final LDKEventHandlerHolder impl_holder = new LDKEventHandlerHolder();
37                 impl_holder.held = new EventHandler(new bindings.LDKEventHandler() {
38                         @Override public void handle_event(long event) {
39                                 Event event_hu_conv = Event.constr_from_ptr(event);
40                                 arg.handle_event(event_hu_conv);
41                         }
42                 });
43                 return impl_holder.held;
44         }
45         /**
46          * Handles the given [`Event`].
47          * 
48          * See [`EventsProvider`] for details that must be considered when implementing this method.
49          */
50         public void handle_event(Event event) {
51                 bindings.EventHandler_handle_event(this.ptr, event == null ? 0 : event.ptr & ~1);
52         }
53
54 }